DEX could be a good idea. However, I've tried something without success. In waves, for example, you can sell btc for USD tokens with good profit, but you can no

DEX could be a good idea. However, I've tried something without success. In waves, for example, you can sell btc for USD tokens with good profit, but you can not extract them. When exchanging with other ctyptos there is no high volume, then I've found bid / ask prices with high spread.